Phil Wallach

I follow where my mind leads …

Phil Wallach header image 4

Entries from July 2007

OpenLaszlo: a way to propagate context menus

July 27th, 2007 · 1 Comment

In OpenLaszlo context menus are attached to a single view. If an object on the screen is composed from multiple views the context menu must be attach to each of these views. This was a problem for me because I had screen objects composed from over 20 views each, and assigning a context menu to […]

[Read more →]

Tags: OpenLaszlo

OpenLaszlo: optimising for a large number of views

July 22nd, 2007 · 3 Comments

THE PROBLEM
I had a serious performance problem with an OpenLaszlo application.  The application had a large number of views, most of which were ‘hidden’ at any one time.  The views comprised a number of subviews, including an image loaded at runtime.  I wanted all views instantiated at startup for quick navigation by the user.
The problem […]

[Read more →]

Tags: OpenLaszlo

OpenLaszlo: dynamic tooltip text

July 9th, 2007 · 1 Comment

OpenLaszlo Project Blog » Laszlo Mail tooltip contributed to OpenLaszlo is an old post announcing the availability of tooltip code for OpenLaszlo (go there for a link to the code).    I am using this code and it is easy to use and visually elegant.
 I needed dynamic content for my tooltips.  The display text for the tooltip […]

[Read more →]

Tags: OpenLaszlo

OpenLaszlo: replacing a “persistent connection” with an idle loop

July 2nd, 2007 · No Comments

The OpenLaszlo documentation states that the persistent connection functionality should not be deployed for production purposes, except for low-volume non-critical applications.
This may be in part due to the model of holding an open connection between a server and a client over the Internet. Such solutions typically do not scale well (requiring back end servers to […]

[Read more →]

Tags: OpenLaszlo